Material for use as substitute for linoleum.



UNTTED STATES Patented October 25, 1904;.

PATENT I OFFICE.

ERIK VILHELM CLAUSEN, OF NORRE iVEBEL, AND CARL ARENT HEILMANN,

OF SKJZELSKOR, DENMARK.

MATERIAL FOR USE AS SUBSTITUTE FOR LINOLEUM.

SE EOIFICATION forming part of Letters Patent No. 773,276, dated October 25, 1904. Application filed .LPIil 15, 1903. Serial No. 152,79 (No specimens.)

To rt 7071/0712, it may concern:

Be it known that we, ERIK VILHELM CLAU- SEN, of Norre N ebel, Jutland, in the Kingdom of Denmark, and CARL ARENT HEILMANN, of Skjzelskor, in the Kingdom of Denmark, both apothecaries, have invented certain new and useful Improvements in Material to be Used as a Substitute for Linoleum or the Like; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The object of the present invention is a material to be used as a substitute for linoleum or the like; and it consists of a mixture of a caseinate of an alkaline metal and an albuminate of an alkaline metal, to which mixture, which possesses a considerable binding capacity, is added filling substances-such as cork-shavings, leather-cuttings, or the like in such a quantity that the compound gets of a suitable consistency. As a rule it is preferred to add a small amount of sulfur to the above mixture.

It is not necessary to prepare the sticky mixture of the caseinate and albuminate before the filling substances are added, and in many cases all the substances entering into the mixture are mixed simultaneously. Good results are obtained when mixing in the following proportions: about fifty to eighty parts (in weight) of albumen, (for example, serum albumen of blood,) about fifty parts (in weight) of casein, about twenty to forty parts (in weight) of cork-shavings, leathercuttings, or the like, about two to six parts (in weight) of flowers of sulfur, and about five fifteen parts (in weight) of caustic-soda lye. It is of no importance that the filling substances should enter into the mixture in exactly the abovementioned quantities, and neither is it necessary to use cork and leather, as many other kinds of substances may be employed. On the other hand, it is of importance that a mixture of serum albumen and casein be used and that these substances should preferably be bound to an alkali. Experiments have proved that a caseinate alone is not sufficient as a basis for such materials on account of it being easily soluble, so that the material has no power of resistance against moisture. On the other hand, a serum albuminate alone does not possess suflicient binding capacity, so that the material would not be strong enough. Experiments have further proved that as the base in the said mixture of caseinate and serum albuminate must be used an alkali, such as soda, as the alkaline species of earth, such as lime, which has often been used in connection with casein, makes the finished material brittle, so that it cracks. The same effect occurs when lime is used in connection with saccharine substances-such as, for instance, molasses.

On account of the above drawbacks the present mixture is made to consist of a caseinate of an alkaline metal, a serum albuminate of an alkaline metal, and suitable filling substances. Hereby a material is obtained that may be rolled so as to form slabs or carpets or it may be cast or spread direct on floors, walls, or other supports.

The material is very strong against wear and tear. It is in possession of great elasticity and has no tendency to crack.

Having now particularly described and ascertained the nature of this said invention and in what manner the same is to be performed, we declare that what we claim is 1. A material to be used as a substitute for linoleum consisting essentially of a suitable filler and of a binder in a proportion greater than the proportion of filler and composed of a mixture of a serum albuminate and of a case- 5 4. A material to be used as a substitute for linoleum, consisting of from twenty to forty parts by weight of a suitable tiller about fifty parts by weight of an alkali-metal caseinate, from lifty to eighty parts by Weight of an alkali'metal albuminate and from live to fifteen parts by weight of sulfur, substantially as set forth.

A material to be used as a substitute for linoleum or the like, consisting of a mixture of albumin-ates, sulfur and a filler, substantially as described.

6. A material to be used as a substitute for linoleum or the like, consisting of a mixture of albuminates of a metalof the alkalies, sulfur and a filler, substantially as described.

7. A material to be used as a substitute for linoleum or the like, consisting of a mixture of a serum al bu urinate, a caseinate, sulfur and a filler, substantially as described.

8. A material to be used as a substitute for linoleum or the like, consisting of an alkalimetal serum albuminate, an alkali-metal caseinate, sulfur and a filler, substantially as described.

ln tcstimon y that We claim the foregoing as our invention We have signed our names in presence of two subscribing Witnesses.

ERIK VILHELM GLAUSEN. (EARL ARENT HEILMANN. itnesses:

J. (J. JAooBsnN, P. IIOFMAN BANG. 

